The Flash 4×03 “Luck Be A Lady” Season 4 Episode 3 Extended Promo – Barry (Grant Gustin) and the team are hit by a string of bad luck and realize it is the handiwork of a new meta, Becky (guest star Sugar-Lyn Beard) nicknamed Hazard, who has the ability to give others bad luck, while cashing in the benefits for herself. Meanwhile, Harry Wells (Tom Cavanagh) returns to Earth-1 to give Wally (Keiynan Lonsdale) a message from Jesse. Armen V. Kevorkian directed the episode written by Sam Chalsen & Judalina Neira (#403). Original airdate 10/24/2017.